My daughter has had seizures for 20 years. She was on Depakote a...

My daughter has had seizures for 20 years. She was on Depakote and Tegretol for about 15 years. We switched neurologists because of the continued seizures and involuntary movements that made her fall. She is now on lamictal (300mg) and topamax . Her seizures seem better, although she still makes the movements. But what is very different is her speech. She is speaking very nasally to the point I almost can't understand her and she repeats her sell constantly. Going to the neurologist next week.